32152561561 has 16 divisors (see below), whose sum is σ = 32688976320. Its totient is φ = 31621181760.

The previous prime is 32152561549. The next prime is 32152561621. The reversal of 32152561561 is 16516525123.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32152561561 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 32152561561.

It is not an unprimeable number, because it can be changed into a prime (32152561361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16649766 + ... + 16651696.

It is an arithmetic number, because the mean of its divisors is an integer number (2043061020).

Almost surely, 2^32152561561 is an apocalyptic number.

It is an amenable number.

32152561561 is a deficient number, since it is larger than the sum of its proper divisors (536414759).

32152561561 is a wasteful number, since it uses less digits than its factorization.

32152561561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3096.

The product of its digits is 54000, while the sum is 37.

The spelling of 32152561561 in words is "thirty-two billion, one hundred fifty-two million, five hundred sixty-one thousand, five hundred sixty-one".